<template>
  <div class="auth-page">
    <div class="container page">
      <div class="row">

        <div class="col-md-6 offset-md-3 col-xs-12">
          <h1 class="text-xs-center">{{ isLogin ? 'Sign in' : 'Sign up' }}</h1>
          <p class="text-xs-center">
            <nuxt-link v-if="isLogin" to="/register">Need an account?</nuxt-link>
            <nuxt-link v-else to="/login">Have an account?</nuxt-link>
          </p>

          <ul class="error-messages">
            <template v-for="(messages, field) in errors">
              <!-- <li v-for="(message, index) in messages" :key="index">{{ field }} {{ message }}</li> -->
              <li>{{ field }} {{ messages }}</li>
            </template>
          </ul>

          <form @submit.prevent="onSubmit">
            <fieldset v-if="!isLogin" class="form-group">
              <input v-model="user.username" class="form-control form-control-lg" type="text" placeholder="Your Name" required>
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.email" class="form-control form-control-lg" type="email" placeholder="Email" required>
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.password" class="form-control form-control-lg" type="password" placeholder="Password" required
                minlength="8">
            </fieldset>
            <button class="btn btn-lg btn-primary pull-xs-right">
              {{ isLogin ? 'Sign in' : 'Sign up' }}
            </button>
          </form>
        </div>

      </div>
    </div>
  </div>
</template>

<script>
import { login, register } from '@/api/user';

// 仅在客户端加载 js-cookie 包
const Cookie = process.client ? require('js-cookie') : undefined;

export default {
    middleware: 'notAuthenticated',
    name: 'LoginIndex',
    computed: {
        isLogin() {
            return this.$route.name === 'login';
        },
    },
    data() {
        return {
            user: {
                username: '',
                email: 'raochunping@163.com',
                password: '12345678',
            },
            errors: {}, // 错误信息
        };
    },

    methods: {
        async onSubmit() {
            try {
                // 提交表单请求登录
                const { data } = this.isLogin
                    ? await login({
                          user: this.user,
                      })
                    : await register({
                          user: this.user,
                      });

                // console.log(data);
                // TODO: 保存用户的登录状态
                this.$store.commit('setUser', data.user);

                // 为了防止刷新页面数据丢失，我们需要把数据持久化
                Cookie.set('user', data.user);

                // 跳转到首页
                this.$router.push('/');
            } catch (err) {
                console.log('请求失败', err);
                this.errors = err.response.data.errors;
            }
        },
    },
};
</script>

<style>
</style>
